Journal
BIOPHYSICAL JOURNAL
Volume 85, Issue 2, Pages 828-842Publisher
CELL PRESS
DOI: 10.1016/S0006-3495(03)74523-8
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Funding
- NIGMS NIH HHS [GM59875-02, R01 GM059875] Funding Source: Medline
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Recent experiments show that the conformation of. lament proteins play a role in the motility and morphology of many different types of bacteria. Conformational changes in the protein subunits may produce forces to drive propulsion and cell division. Here we present a molecular mechanism by which these forces can drive cell motion. Coupling of a biochemical cycle, such as ATP hydrolysis, to the dynamics of elastic. laments enable elastic. laments to propagate deformations that generate propulsive forces. We demonstrate this possibility for two classes of wall-less bacteria called mollicutes: the swimming of helical-shaped Spiroplasma, and the gliding motility of Mycoplasma.
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